If you wanna put it this way, it only comes into existence... when it bumps up against some other piece of physical reality. That other piece may be us, and of course, we're partial to those moments... but it doesn't have to be either.
HihaunareaIitatfísicaqueès sóIidacomunapedrai,encanvi, perdir-hod'aIgunamanera, nomèsexisteix quantopaamcunaaItra peçadeIareaIitat.